Process of linking nucleosides with a siloxane bridge
    18.
    发明授权
    Process of linking nucleosides with a siloxane bridge 失效
    用硅氧烷桥连接核苷酸的方法

    公开(公告)号:US5214134A

    公开(公告)日:1993-05-25

    申请号:US581502

    申请日:1990-09-12

    IPC分类号: C07H20060101 C07H23/00

    CPC分类号: C07H23/00

    摘要: A method of linking nucleosides with a siloxane bridge comprising reacting a 3'-silylated-5'-protected nucleoside with an unprotected nucleoside is disclosed. The silylated and unprotected nucleosides may be either monomeric nucleosides or the terminal nucleosides of an oligonucleotide or oligonucleotide analog. A method of synthesizing an oligonucleotide analog having siloxane internucleoside linkages is also disclosed. The method of synthesis comprises silylating a 5'-protected nucleoside with a bifunctional silylating reagent to form a 3'-silylated nucleoside, reacting the silylated nucleoside with an unprotected nucleoside in the presence of a base catalyst and repeating these steps to form an oligonucleotide analog. A modified solid phase synthesis method for preparing an oligonucleotide analog having siloxane internucleoside linkages is also disclosed.

    摘要翻译: 公开了将核苷与硅氧烷桥连接的方法,包括使3'-甲硅烷基化-5'-保护的核苷与未保护的核苷反应。 甲硅烷基化和未保护的核苷可以是单体核苷或寡核苷酸或寡核苷酸类似物的末端核苷。 还公开了合成具有硅氧烷核苷间键的寡核苷酸类似物的方法。 合成方法包括用双官能甲硅烷基化试剂甲硅烷基化5'-保护的核苷以形成3'-甲硅烷基化核苷,在碱催化剂存在下使甲硅烷基化的核苷与未保护的核苷反应,并重复这些步骤以形成寡核苷酸类似物 。 还公开了用于制备具有硅氧烷核苷间键的寡核苷酸类似物的改进的固相合成方法。